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The Effect of Accelerated Alteration on the Discrimination between B altic and R omanian Amber
Author(s) -
Teodor E. S.,
Petroviciu I.,
Truică G. I.,
Şuvăilă R.,
Teodor E. D.
Publication year - 2014
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/arcm.12024
Subject(s) - principal component analysis , spectroscopy , mineralogy , chemistry , infrared spectroscopy , analytical chemistry (journal) , geology , physics , chromatography , computer science , artificial intelligence , astronomy , organic chemistry
Ten geological samples (five from each source— R omanian amber and B altic amber) in duplicate for five different media (air, water, saline, acid and basic) were subjected to thermal alteration at 80 ± 2° C for 12 weeks, in the dark. The samples were analysed before and after the accelerated alteration experiment by Fourier transform infrared spectroscopy, both in transmittance and reflectance mode, and the acquired spectra were statistically processed by multivariate data analysis, mainly using principal component analysis. The results of the experiment are useful in giving a better picture of how to discriminate between archaeological amber artefacts.